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Development Of Fiber Optic Based Dynamic Light Scattering For A Characterization Of Turbid Suspensions
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Book Synopsis Development of Fiber Optic Based Dynamic Light Scattering for a Characterization of Turbid Suspensions by : Claus Urban
Download or read book Development of Fiber Optic Based Dynamic Light Scattering for a Characterization of Turbid Suspensions written by Claus Urban and published by Herbert Utz Verlag. This book was released on 1999 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Fiber Optic Based Dynamic Ligth Scattering for a Characterization of Turbid Suspension by : Claus Urban
Download or read book Development of Fiber Optic Based Dynamic Ligth Scattering for a Characterization of Turbid Suspension written by Claus Urban and published by . This book was released on 1999 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fiber Optic Dynamic Light Scattering by : Sridhar Sadasivan
Download or read book Fiber Optic Dynamic Light Scattering written by Sridhar Sadasivan and published by . This book was released on 1997 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Fiber Optic Dynamic Light Scattering by : Jingxun Fang
Download or read book Application of Fiber Optic Dynamic Light Scattering written by Jingxun Fang and published by . This book was released on 2000 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Springer Series in Light Scattering by : Alexander Kokhanovsky
Download or read book Springer Series in Light Scattering written by Alexander Kokhanovsky and published by Springer Nature. This book was released on 2021-10-27 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book aims to the description of recent progress in studies of light absorption and scattering in turbid media. In particular, light scattering/oceanic optics/snow optics research community will greatly benefit from the publication of this book.
Book Synopsis Research Advances in Dynamic Light Scattering by : Jaison Jeevanandam
Download or read book Research Advances in Dynamic Light Scattering written by Jaison Jeevanandam and published by . This book was released on 2020-04-25 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic light scattering (DLS) is an important concept that has found applications in the characterization of the biophysical properties of materials for a wide range of applications. DLS studies are extensively employed in material science and engineering to evaluate particle size distribution and surface charge for applications in nanomaterial synthesis, biomolecular analysis, pharmaceutical development and environmental applications. The aim of this book is to provide an overview of research advances relating to the principle and applications of DLS in various fields. The book is divided into two parts Part 1 discusses the uses of DLS in material science and engineering applications and Part 2 focuses on applications of DLS in biological sciences. Chapter 1 aims to provide an overview of the working principle, mathematical models and different types of DLS analysis methods. In addition, recent trends in DLS studies and applications in various fields are also discussed. Chapter 2 discusses the uses of DLS for nanomaterial characterization in terms of the size, size distribution and zeta potential of particles. Chapter 3 compares two techniques (DLS and SAXS) and provides evidence that nanocatalyst can be characterized more effectively by modifying DLS with SAXS. In Chapter 4 the authors demonstrate the application of DLS in characterizing self-assembling and stimuli-responsive di-block copolymers in aqueous media and their association with low molecular weight drugs. Chapter 5 discusses slow and ultraslow dynamics, probed by DLS measurements, in common organic molecular liquids, ionic liquids (ILs), aqueous solutions of salts and molecular solids and liquid-liquid binary mixtures.
Author :Alexander A. Kokhanovsky Publisher :Springer Science & Business Media ISBN 13 :354074276X Total Pages :516 pages Book Rating :4.5/5 (47 download)
Book Synopsis Light Scattering Reviews 4 by : Alexander A. Kokhanovsky
Download or read book Light Scattering Reviews 4 written by Alexander A. Kokhanovsky and published by Springer Science & Business Media. This book was released on 2009-07-25 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fourth volume of Light Scattering Reviews is composed of three parts. The ?rstpartisconcernedwiththeoreticalandexperimentalstudiesofsinglelightsc- tering by small nonspherical particles. Light scattering by small particles such as, for instance, droplets in the terrestrial clouds is a well understood area of physical optics. On the other hand, exact theoretical calculations of light scattering p- terns for most of nonspherical and irregularly shaped particles can be performed only for the restricted values of the size parameter, which is proportional to the ratio of the characteristic size of the particle to the wavelength?. For the large nonspherical particles, approximations are used (e. g. , ray optics). The exact th- retical techniques such as the T-matrix method cannot be used for extremely large particles, such as those in ice clouds, because then the size parameter in the v- iblex=2?a/???,wherea is the characteristic size (radius for spheres), and the associated numerical codes become unstable and produce wrong answers. Yet another problem is due to the fact that particles in many turbid media (e. g. , dust clouds) cannot be characterized by a single shape. Often, refractive indices also vary. Because of problems with theoretical calculations, experimental (i. e. , la- ratory) investigations are important for the characterization and understanding of the optical properties of such types of particles. The ?rst paper in this volume, written by B. Gustafson, is aimed at the descr- tionofscaledanalogueexperimentsinelectromagneticscattering.
Book Synopsis Dynamic Light Scattering by : Kwadwo Ampofo Appiah
Download or read book Dynamic Light Scattering written by Kwadwo Ampofo Appiah and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Light Scattering in Fiber-based Materials by :
Download or read book Light Scattering in Fiber-based Materials written by and published by . This book was released on 2014 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Light Scattering for the Characterization of Polydisperse Fractal Systems by the Example of Pyrogenic Silica by :
Download or read book Dynamic Light Scattering for the Characterization of Polydisperse Fractal Systems by the Example of Pyrogenic Silica written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic light scattering (DLS) is a method to size submicron particles by measuring their thermal motion (diffusion) in suspensions and emulsions. However, the validity of the Stokes-Einstein equation that relates the diffusion coefficient and the particle size is limited to spherical particles and very low concentrations. Within this thesis, DLS is used for the characterization of suspensions of pyrogenic silica which consists of fractal-like aggregates composed of sintered spherical primary particles. These structural features clearly complicate the understanding of DLS experiments and have been a severe obstacle to employing DLS as routine standard tool for the characterization of pyrogenic silica. The main objective of this thesis is therefore to evaluate the application of DLS in product development and quality assurance of pyrogenic silica industry, what essentially means to identify those structural properties of fractal aggregates which are measurable with DLS and to quantify the method's sensitivity to changes in these properties. The investigations presented here are split up into four parts, simulations that establish a relation between structural and hydrodynamic properties, experiments validating the simulation results, the characterization of concentrated suspensions and the application-oriented analysis of DLS data for specific industrially relevant measurement tasks.
Book Synopsis A New Instrument for Time-resolved Static and Dynamic Light-scattering Experiments in Turbid Media by :
Download or read book A New Instrument for Time-resolved Static and Dynamic Light-scattering Experiments in Turbid Media written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a new 3D cross-correlation instrument that not only allows for static and dynamic scattering experiments with turbid samples but measures at four angles simultaneously. It thus extends the application of cross-correlation light scattering to time-resolved studies where we can, for example, efficiently investigate the temporal evolution of aggregating or phase separating turbid dispersions. The combination of multiangle 3D and on-line transmission measurements is an essential prerequisite for such studies. This not only provides time-resolved information about the overall size and shape of the particles through measurements of the mean apparent radius of gyration and hydrodynamic radius, but also on the weight-average apparent molar mass via the absolute forward scattering intensity. We present an efficient alignment strategy based on the novel design of the instrument and then the application range of the instrument using well-defined model latex suspensions. The effectiveness of the cross-correlation multiangle technique to monitor aggregation processes in turbid suspensions is finally shown for the acidification of skim milk during the yoghurt-making process. Due to the self-assembled nature of the casein micelles an understanding of the sol- el process induced by the acidification is only feasible if time-resolved light-scattering experiments on an absolute scale are possible under industrially relevant conditions, where the casein solutions are highly turbid.
Book Synopsis Development and Application of an Area Recorded Generalized Optical Scattering Technique by : Saad Ali Algarni
Download or read book Development and Application of an Area Recorded Generalized Optical Scattering Technique written by Saad Ali Algarni and published by . This book was released on 2014 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A novel approach to a light scattering experiment that employs a lounge image capture assay has been developed for both static and dynamic measurement on a wide variety of samples. In this work, the 'Development and Application of an Area Recorded Generalized Optical Scattering Technique', abbreviate[d] as ARGOS, an approach is based on the placement of a translucent screen where the scattered light, now converted to a diffuse light, is imaged as a function of time. The placement and size of the screen determines the range of scattering wave-vectors, while the time between images determines the fastest dynamic resolvable. The overall experimental stability determines the slowest dynamic resolvable and so can be made arbitrarily long. The scattering intensity is measured by a camera whose dynamic range (number of bits per pixel), resolution, and speed determines the sensitivity and accuracy of intensity of the scattered light. The system allows for an extremely well-defined scattering experiment geometry, where images may be manipulated to extract structure (i.e. average I(q)over t) and dynamics (average I(q, t) over q) for a wide range of samples (liquids and solids). A number of innovation were developed. Instead of a beam stop to block the high intensity thru-beam, a thru-beam attenuator was developed such that the exact center of the scattering geometry is determined for each image acquired. A variety of image processing algorithms were also developed to correct for dead pixels, camera response, and intensity normalization. Of particular use was the development of the root-mean-square difference (RSD) image to probe dynamic. Here, the first image is taken as the time-zero reference image and subtracted from all succeeding images where averaged over a specified q and plotted as a function of time revealing the build up image changes due to dynamics. The technique was validated for both static and dynamic measurements with a set of dilute suspended latex spheres in water (sizes ranging from 0.01 to 2 [mu]m). The static light scattering result in terms of particle radius and dimension closely matched the expected values. The dynamic light scattering results could only several the end of the dynamics of these suspended latex spheres due to Brownian motion because of the speed limitation of the camera. However, sedimentation dynamics that are much slower, were early observed. The ARGOS technique was then applied to two biological systems, the evolution of a dilute suspension of E. coli bacteria through the life-cycle and the evolution of the same suspended bacteria but infected with the MS2 bacteria-phage virus. High temporal resolution data were obtained of the bacteria life-cycle which were correlated with size, structure, and dynamics that revealed potentially new insights on behavior not well understood in the literature. The MS2 infected bacteria revealed the effect of the bacteria-phage on every character of the E. coli life-cycle. The successful development and implementation of ARGOS here has also revealed avenues to greatly improve the performance.
Book Synopsis Fuels From Biomass: An Interdisciplinary Approach by : Michael Klaas
Download or read book Fuels From Biomass: An Interdisciplinary Approach written by Michael Klaas and published by Springer. This book was released on 2015-02-06 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book reports on the results of the BrenaRo Winterschool 2011, held on November 21-22 in Aachen, Germany. The different chapters cover a number of aspects of the topic of energy generation, with a particular focus on energy generation from biomass. They presents new findings concerning engine development, process engineering, and biological and chemical conversion of biomass to fuels, and highlight the importance of an interdisciplinary approach, combining chemistry, biology and engineering research, to the use of renewable energy sources. All in all, this book provides readers with a snapshot of the state-of-the-art in renewable energy conversion, and gives an overview of the ongoing work in this field in Germany.
Book Synopsis Non-equilibrium Behaviour of Colloidal Dispersions by :
Download or read book Non-equilibrium Behaviour of Colloidal Dispersions written by and published by Royal Society of Chemistry. This book was released on 2003 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in the multi-disciplinary field of colloidal systems are discussed. The topics considered include: * Long-lived non-equilibrium states; colloidal aggregates, glasses, and gels * Relaxation to equilibrium; phase transition kinetics; ageing * The effects of shear and other external fields; rheology * Hydrodynamic interactions; diffusion * The construction of specific colloidal structures by depletion forces, templating, and laser tweezers (assisted self assembly). Faraday Discussions documents a long-established series of Faraday Discussion meetings which provide a unique international forum for the exchange of views and newly acquired results in developing areas of physical chemistry, biophysical chemistry and chemical physics. The papers presented are published in the Faraday Discussion volume together with a record of the discussion contributions made at the meeting. Faraday Discussions therefore provide an important record of current international knowledge and views in the field concerned.
Book Synopsis Particle Characterization: Light Scattering Methods by : Renliang Xu
Download or read book Particle Characterization: Light Scattering Methods written by Renliang Xu and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle characterization is an important component in product research and development, manufacture, and quality control of particulate materials and an important tool in the frontier of sciences, such as in biotechnology and nanotechnology. This book systematically describes one major branch of modern particle characterization technology - the light scattering methods. This is the first monograph in particle science and technology covering the principles, instrumentation, data interpretation, applications, and latest experimental development in laser diffraction, optical particle counting, photon correlation spectroscopy, and electrophoretic light scattering. In addition, a summary of all major particle sizing and other characterization methods, basic statistics and sample preparation techniques used in particle characterization, as well as almost 500 latest references are provided. The book is a must for industrial users of light scattering techniques characterizing a variety of particulate systems and for undergraduate or graduate students who want to learn how to use light scattering to study particular materials, in chemical engineering, material sciences, physical chemistry and other related fields.
Book Synopsis Soft-Matter Characterization by : Redouane Borsali
Download or read book Soft-Matter Characterization written by Redouane Borsali and published by Springer Science & Business Media. This book was released on 2008-07-28 with total page 1490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2-volume set includes extensive discussions of scattering techniques (light, neutron and X-ray) and related fluctuation and grating techniques that are at the forefront of this field. Most of the scattering techniques are Fourier space techniques. Recent advances have seen the development of powerful direct imaging methods such as atomic force microscopy and scanning probe microscopy. In addition, techniques that can be used to manipulate soft matter on the nanometer scale are also in rapid development. These include the scanning probe microscopy technique mentioned above as well as optical and magnetic tweezers.
Book Synopsis Ullmann's Encyclopedia of Industrial Chemistry by :
Download or read book Ullmann's Encyclopedia of Industrial Chemistry written by and published by . This book was released on 2003 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
